Hadley sûn-khoân

Hadley sûn-khoân sī kí 1 chióng tāi-khì sûn-khoân (atmospheric circulation), ùi chhiah-tō chhèng koân ê khì-liû chaú kaù hūi-tō͘ 30° hit tah tîm--lo̍h-lâi, koh chaú tńg-khì chhiah-tō, chō-chiâⁿ 1 ê sûn-khoân. Jia̍t-tāi ê tāi-khì sûn-khoân tiāⁿ-tio̍h ài khó thài-iông-lêng. Tē-kiû pún-sin ū 23.5° ê te̍k-khi (axial tilt), kan-taⁿ jia̍t-tāi hū-kīn kúi 10 tō͘ ê hoān-ûi tī thaù tiong-taù ê sî Ji̍t-thaû ē tit ti̍t-chiap chhiō--tio̍h, kiat-kó, thài-iông hok-siā (solar radiation) ê e-nú-jih (energy) lóng chi̍p-tiong tī chhiah-tō, chiah-ê jia̍t-lêng toā-hūn ēng bī-jia̍t (chiâm-jia̍t, latent heat) ê hêng-sek, khò lûi-kong-hō͘ (thunderstorm) ê tùi-liû (convection) chok-iōng, sàng kaù tāi-khì-chân khì.

Average vertical velocity (in pascals per second) at the 500 hPa pressure height in July from 1979–2001. Ascent (negative values) is concentrated close to the solar equator while descent (positive values) is more diffuse; their distribution is an imprint of the ascending and descending branches of the Hadley circulation.

Hadley sûn-khoân kā jia̍t-lêng kap chúi-khì ùi chhiah-tō sàng kaù lâm-pak tiong-hūi-tō͘ ê só͘-chāi.